Apparatus and Method for Processing Spectrum

Abstract

A spectrum y includes a waveform-of-interest component and a baseline component serving as a wide-band component. An optimum solution of a signal model x is determined according to a first condition to fit a corresponding portion S_IFx of a baseline model Fx with respect to a representative portion y_I of the baseline component, and a second condition to minimize an Lp norm (wherein p≤1) of the signal model x. An estimated baseline component determined from the optimum solution of the signal model x is subtracted from the spectrum y.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Japanese Patent Application No. 2018-003522 filed Jan. 12, 2018, the disclosure of which is hereby incorporated in its entirety by reference.BACKGROUNDField of the Invention[0002]The present disclosure relates to an apparatus and a method for processing a spectrum, and in particular to estimation of a baseline component.Description of Related Art[0003]As a spectrum to be a target of a spectrum analysis, there are known an NMR (Nuclear Magnetic Resonance) spectrum, an X-ray spectrum, a spectroscopic spectrum, a mass spectrum, and the like. In general, a spectrum includes a waveform-of-interest component and a baseline component. The waveform-of-interest component is, for example, a portion including one or a plurality of peaks, and is the primary analysis target. On the other hand, the baseline component is a component which is not the primary analysis target, and is a component which exists over a wide b...

AI Technical Summary

Benefits of technology

[0015]According to another aspect of the present disclosure, the processor selects a representative portion in the baseline component from the spectrum, and the residual is a residual between the representative portion in the baseline component and a corresponding portion in the baseline model. A wide-band component serving as the baseline component normally exists over the entirety of the spectrum, but for the purpose of fitting, it is desirable to avoid a portion where components other than the

Problems solved by technology

However, an operation to suitably select a function defining the model and to giv

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